Gearing.



J.- G. HEASLET.

I GEARING.

I A'PPLIUATION FILED JULY 27, 1910. 1,016,628, Patented De0.5,1911.

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GEARING.

APPLIGATION FILED JULY 27, 1910.

Patented Dec. 5, 1911.

3 SHEETSSHEET 2.

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GEARING.

v APPLIGATIQN FILED JULY 27, 1910.

patented Dec. 5, 1911 v 3 SHEETSSHEET 3.

lz zzrazzzarr JAMES G. HEASLET, OF

DETROIT, MICHIGAN, ASSIGNOB OF ONE-HALF '10 FLANDERS, OF PONTIAC, MICHIGAN.

WALTER E.

' Gamma.

Specification of Letters Patent. Application med July 27,1910. Serial n. 574,130.

Patented Dec. 5,

To ali whom it may concern:

. Be it known that 1, JAMES G. HEASLET, a

citizen of the United States, resident of Detroit, county of Wayne, and State of Mich1- gan, have invented a new and useful. Im-

- provement in Gearing, of which the following is'a specification, the principle of the invention being herein explained and the bestmode in which I have contemplated applying that principle, so as to distinguish it from other invent ons.

My invention relates :to transmission mounting for automobiles, its object being to arrange such transmission and adjacent parts in an economical and eflicient manner, and particularlywith a view to rendering the transmission change'speed gears readily accessible for inspection, removal or repairs.

The said invention consists of means hereinafter fully described and particularly set .forth in the claims.

The annexed drawings and the following description set forth in detail certain mechanism embodying my invention, the disclosed means; however, constituting but one of various mechanical forms in which the principle of the invention may be applied.

In said annexed drawings :-Figure 1 is a side elevation of the houslngfor the trans mission mechanism arranged in accordance with my invention. Fig. 2 is a horizontal section taken upon the plane indicated by line IIII in Fig. 1, the interior transmission mechanism beingshown removed. Fig.

3 is a front-elevation of said housing and" adjacent parts. Fig. 4 is a vertical transverse section taken upon the plane indicated by line IVIV in Fig. 5, and viewed in the direction indicated by the arrow. Fig. 5is a longitudinal section of the transmission area, and are closed by means 0 plates, 0.

are secured the bearing plates B and B.

These plates are formed with spiders b and b respectively, and their central portions are formed with the bearing bosses b and b respectively. These. bosses carry the bearin form t e bearings for the rear axle, as described in an a plication for U. S. Letters Patent, filed. uly 27, 1910, Serial No. 574,129. As also described in said co-pending application, within this portion of the housing is mounted the main bevel driving gear 0. .The openings a a are made of a diameter such that this driving gear may be slipped laterally within the housing when either of the plates B or, B is remo,ved.'

These plates are secured b means of screws b', by means of which suc removal may be readily eflected. The change speed mechanism is located in the forward part of this housing,-.and laterally adjacent to the openings a. a. This mechanism includes a spindle mounted in ball bearings (Z d, and carryingthe three pinions D D and D of varying diameter, as shown, said gears being securely keyed to said s indle. Pinion D meshes with a laterally placed gear D, Figs. 4: and 5. The rear end of the driving shaft E is keyed to a sleeve E mounted in the ball bearing e, and the inner end of this sleeve cups 6 b for the balls I) which carries a pinion E whose rear face is provided withthe clutch fingers 6'. These clutch fingeisare adapted to engage complementar clutch depressions f formed upon the ront face of the driving pinion F.

This latter gear is keyed to a shaft F whose rear end is mounted in ball bearings f, and keyed to the rearmost extremity .of such shaft is the driving bevel pinion F which fmeshes with the driving bevel gear 0. The

'pinion: E meshes with pinion D, and

the periphery of the pinion F. is in alinement with the peripheries of pinions I) and D. The rearend of pinion F is formed with a groove f which receives the shifting fork, G, whose lower end is secured to the shifting rod G. This rod is mounted in will be readily understood. A direct shaft drive is thus procured, the spindle D and the ears connected therewith all being driven idly. By shifting the rod G so as to move the pinion F to the left a distance sufiicient' 5 driven by spindle D, which receives its movement from the pinion D, the latter being rotated by the pinion E driven by the shaft E. A rotation of the rear axle at a given speed is thus obtained, which speed varies from that obtained by the direct connection of the shaft with the driving bevel gears. A further movement ofthe rodG' .to the left will cause the pinionF to engage the pinion D. This latter pinion being in mesh with the pinion D will therefore drive the shaft F in the op osite direction, and a reverse movement of the rear axle will be obtained... 7

As will be readily understood, the gears are so proportioned that the speed obtained when pinions D and F are in engagement will be less'than that obtained by the direct drive, and the speed obtained during the reversed movement of the rear axle will be comparatively low, as is customary in the construction of automobiles.

Having fully described my invention, what I claim therefore and desire to secure by Letters Patent is:

1. In a transmission mounting, a housing formed in forward and rear chambers each having lateral openings therein, transmission mechanism mounted in said forward chamber, removable cover plates closing said forward opening, a driving gear mounted in said rear chamber and removable cover plates closing said rear openings.

2. In a transmission mounting, a housin formed in forward and rear chambers eac having lateral openings therein, transmission mechanism mounted in said forward chamber, removable cover plates closing said forward openings, a driving gear mounted in said rear chamber, and removable cover plates provided with bearing rings for said driving gear closing said rear openings.

.3. In a transmission mounting, a housing, a partition dividing said housing into forward and rear chambers, each of said chambers having lateral openings therein, trans mission mechanism mounted in said forward chamber, removable cover plates closing said forward openings, a driving gear mounted in said rear chamber, and removable coverplates closing said rear openings and provided with bearings for said driving gear.

Signed by me, this 26th day of July, 1910.

' JAMES o. HEASLET.

Attested by JAMES E. SPENCER, FRANK A. Barns. 

